<!--
 * @Author: summer12138 1343364145@qq.com
 * @Date: 2023-05-20 21:11:17
 * @LastEditors: summer12138 1343364145@qq.com
 * @LastEditTime: 2023-05-20 21:33:55
 * @FilePath: \Vue核心技术与实战 - 作业\作业day02\品牌管理.html
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
-->
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .red{
      color: red;
    }
  </style>
</head>
<body>
  <div id="app">
    <div class="container">
      <!-- 顶部搜索框模块 -->
      <div class="form-group">
        <div class="input-group">
          <h4>品牌管理</h4>
        </div>
      </div>

      <!-- 数据表格 -->
      <table class="table table-bordered table-hover mt-2">
        <thead>
          <tr>
            <th>编号</th>
            <th>资产名称</th>
            <th>价格</th>
            <th>创建时间</th>
            <th>操作</th>
          </tr>
        </thead>
        <tbody>
          <tr v-for="(item) in list">
            <td>{{item.id}}</td>
            <td>{{item.name}}</td>

            <!-- 如果价格超过100，就有red这个类 -->
            <td :class="{red:item.price>=100}">{{item.price}}</td>
            <td>{{item.time}}</td>
            <td><a href="#" @click="del(item.id)">删除</a></td>
          </tr>
          <tr style="background-color: #EEE">
              <td>统计:</td>
              <td colspan="2">总价钱为:{{total}}</td>
              <td colspan="2">平均价: {{avg}}</td>
        </tr>
        </tbody>
        <tfoot>
          <tr>
            <td colspan="5" style="text-align: center">暂无数据</td>
          </tr>
        </tfoot>
      </table>

      <!-- 添加资产 -->
      <form class="form-inline">
        <div class="form-group">
          <div class="input-group">
            <input type="text" class="form-control" placeholder="资产名称" v-model="name"/>
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <div class="form-group">
          <div class="input-group">
            <input type="text" class="form-control" placeholder="价格" v-model.number="price"/>
          </div>
        </div>
        &nbsp;&nbsp;&nbsp;&nbsp;
        <!-- 阻止表单提交 -->
        <button class="btn btn-primary" @click="add">添加资产</button>
      </form>
    </div>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script>
    const  arr = [
          { id: 100, name: "外套", price: 199, time: '2010-08-12' },
          { id: 101, name: "裤子", price: 34, time: '2013-09-01' },
          { id: 102, name: "鞋", price: 25.4, time: '2018-11-22' },
          { id: 103, name: "头发", price: 19900, time: '2020-12-12' }
        ]
    const app = new Vue({
      el: '#app',
      data: {
        name: "", // 名称
        price: 0, // 价格
        time:new Date(),
        list:JSON.parse(localStorage.getItem('data'))||arr ,
      },
      methods: {
        del(i){
          this.list=this.list.filter(item=>item.id!==i)
        },
        add(){
          this.list.push({id:100+this.list.length,name:this.name,price:this.price,time:this.time})
        }
      },
      computed: {
        total(){
          return this.list.reduce((a,b)=>a+b.price,0).toFixed(2)
        },
        avg(){
          return (this.total/this.list.length).toFixed(2)
        }
      },
      watch: {
        list(){
          localStorage.setItem('data',JSON.stringify(this.list))
        }
      },
    })
  </script>
</body>
</html>